Stuff | Interesting Facts & Knowledge on Instagram: "Mercury is strictly prohibited on aircraft because it reacts aggressively with aluminum, the primary material used in a plane’s airframe. When mercury comes into contact with aluminum, it disrupts the protective oxide layer that naturally forms on the surface of the metal. This allows the mercury to form an amalgam, a liquid alloy that rapidly and continuously oxidizes the aluminum into thin, brittle fibers of aluminum oxide. Because the mercu

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